Question: What part of the earth is seen measuring radius-6339.9?
Paraphrase: what some portion of the earth is seen estimating range 6339.9?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q2 p:P2120 ?s . ?s ps:P2120 ?x filter(contains(?x , '6339.9')) . ?s pq:P18 ?value}